Sliding window installation is an excellent choice when you want modern style, easy operation, and maximum unobstructed views. A sliding window glides horizontally on smooth tracks, giving you flexible ventilation control and wide, clear opening for bright, airy spaces. Sliding windows are ideal for living rooms, kitchens, bedrooms, and any space where you want large windows without the swing-out space required by casement or awning windows. Because the sash seals tightly against the frame and compresses the weatherstripping, a sliding window is often selected for improved air tightness, ease of use for all ages, and contemporary aesthetics, especially in modern Montreal homes.
Horizontal gliding design slides smoothly on tracks left and right
Provide expansive views and maximum glass area
Sealed tightly to maximize energy efficiency and noise reduction
Sliding windows are designed with a simple horizontal gliding mechanism on smooth tracks, allowing them to slide open smoothly left or right. Their sleek, minimalist design makes them an ideal choice for modern spaces and rooms where you want clean lines and unobstructed visibility. These windows are low-maintenance and easy to clean. Equipped with full fibreglass push-down screens, they effectively keep insects and debris out while being simple to remove when needed. Maximize the potential of sliding windows by creating expansive openings for living rooms, kitchens, and bedrooms. With professional sliding window installation, you can achieve contemporary style, improve natural light, and enhance the visual appeal of your home. Explore your options today with Fortena!
Warranty up to
25 years
Transferable: The remaining warranty can pass to the next homeowner when you sell.
What’s covered: Up to 25 years on key components, typically frame, sealed glass unit, and hardware.
Conditions: Valid under normal use, with proof of purchase, basic maintenance, and standard exclusions.
Multiple Color Options
Factory-applied colour technology is designed to resist fading, peeling, and scratches, with low-maintenance durability.
Energy Efficiency
Low-E Glass: Engineered for the Canadian climate, low-emissivity glass improves indoor comfort while boosting energy efficiency all year round.
High-Performance Spacer: Our warm-edge spacer technology helps reduce heat transfer at the glass edge.
Save up to $150 per each new window or door!
If you are planning a window replacement or door installation in Quebec, you may be eligible for meaningful rebates through active energy efficiency programs. For homeowners, Rénoclimat can provide up to $150 per eligible door or window. Depending on your building type, additional support may also be available through utility and commercial-focused initiatives that incentivize building envelope upgrades, including eligible window replacements for multi unit and commercial properties. In our full guide, we summarize what is currently open at the provincial, federal, and utility levels, the key conditions to qualify, and the practical steps to apply so you can reduce the total cost of your upgrade without compromising on performance.
We start with a free visit to review your openings, check for drafts or moisture risks, and take precise measurements. You also get clear guidance on styles, glazing, and performance options based on your home and budget.
Customized Windows Ordering and Project Planning
Next, we confirm the final specifications and order your windows to match your exact measurements and selections. We then plan the job details, including access, protection of interior finishes, and scheduling.
Professional Installation and Clean Finishing
We remove the old unit, prepare the opening, and set the new window square, level, and securely fastened. We air seal and insulate around the frame, complete interior and exterior finishing, then do a full cleanup and inspection.
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Laura Pagé
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Nous sommes super satisfait des travaux qui ont été fait par l'équipe de Fortena Fenêtres et Portes! Une installation impéccable et professionelle! Je vous les recommande fortement. Une équipe très aimable et à l'écoute de nos besoins :) Merci beaucoup à vous!
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Claudette
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Des installateurs attentionnés ,ils sont minutieux et fais un très bon travail. Ils sont très respectueux et ne laisse aucun débris. Nous recommandons cette entreprise.Nous sommes très satisfait de leur travail et de la qualité des portes.
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Stéphane Chamberland
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Super service ! Prix compétitif et Alex toujours disponible quand besoin de lui. Agrandissement de porte patio et fenêtre de cuisine. Beau travail !
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Ryma Houari
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Vraiment très belle job le boss Alex personne très fiable professionnel je recommande fortement qualité du produit et prix très raisonnable .
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Brahim Alami
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Une très belle expérience de professionnalisme, le respect du temps et la qualité de travail. Contact à garder précieusement pour vos prochaines rénovations.
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Marie-France Palengat
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Je suis très satisfaite de l'installation. Gens très gentils. Alexandru est une personne très à l'écoute de nos besoins. Je recommanderais sans hésiter
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Rania Ben
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Nous sommes très satisfaits de l’excellent travail exécuté avec professionnalisme et compétence par Alex et son collègue, ainsi que des précieux conseils qu’ils nous ont donnés. Leur souci du détail et du travail bien fait a fait toute la différence : ma cuisine est maintenant plus droite qu’elle ne l’était auparavant.
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Amélie Maranda
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Excellent service du début à la fin ! L’installation des fenêtres et des portes a été réalisée avec beaucoup de professionnalisme. Le travail est propre, rapide et très efficace. L’équipe est sérieuse, ponctuelle et attentive aux détails, en plus les prix sont très compétitifs. Je suis vraiment satisfaite du résultat final. Je recommande fortement cette compagnie !
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francine davis
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Très bon travail effectué par les installateurs; très professionnel; je recommande sans réserve.
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Michel Sylvestre
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Installation très réussie de deux grandes fenêtres à battant. Travail minutieux et très soigné. Installateurs serviables. Recommandé sans hésitation!
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High-performance windows & doors built for Quebec’s harsh winters and hot, humid summers.
Empowering Homes With Energy-Efficient Windows & Doors
100%
Triple pane Low E glass with argon fill reduces heat loss, drafts, and condensation for consistent comfort
Energy-efficient frames, warm edge spacers, and high-performance seals cut air leakage, keep indoor temperatures stable
Patio doors and entry doors with enhanced cores, tight weatherstripping, and multipoint locks improve efficiency, comfort, and noise control
We specialize in professional window installation designed for Quebec’s extreme climate conditions. From triple-pane Low-E glass with argon gas to reinforced PVC frames and warm-edge spacers, every system we install is engineered to minimize heat loss and reduce air infiltration.
Proper installation is just as critical as product quality. Our team ensures accurate measurements, insulated framing, airtight sealing, and correct exterior flashing to protect your home from drafts, condensation, and water intrusion.
Local Roots in Saint-Constant, Serving Greater Montreal
Based in Saint-Constant, Fortena serves homeowners and property managers across Greater Montreal’s South Shore and all Montreal neighbourhoods, including Saint-Constant, La Prairie, Candiac, Brossard, Longueuil, Boucherville, Saint-Lambert, Saint-Bruno-de-Montarville, and Chambly. We tailor every window replacement and door installation to the realities of each area. Sliding window installations are particularly popular in modern Montreal homes, condos, and apartment buildings where space efficiency and contemporary aesthetics are priorities. In family-focused communities like Saint-Constant, Saint-Bruno-de-Montarville, Boucherville, Candiac, and La Prairie, our work often involves full retrofits for bungalows, split-levels, and newer two-storey homes, with energy-efficient PVC windows & doors systems and tight, clean finishing. In denser markets like Brossard and Longueuil, we frequently coordinate installs for townhouses, condos, and multi-plexes, with precise measurement, access planning, and consistent results across units.
